﻿using System;
using System.Runtime.InteropServices;
using System.Threading;
using System.Threading.Tasks;
using Microsoft.VisualStudio.Shell;
using Microsoft.VisualStudio.Shell.Interop;
using Microsoft.VisualStudio.Threading;
using Task = System.Threading.Tasks.Task;

namespace doki_theme_visualstudio {
  /// <summary>
  ///   This is the class that implements the package exposed by this assembly.
  /// </summary>
  /// <remarks>
  ///   <para>
  ///     The minimum requirement for a class to be considered a valid package for Visual Studio
  ///     is to implement the IVsPackage interface and register itself with the shell.
  ///     This package uses the helper classes defined inside the Managed Package Framework (MPF)
  ///     to do it: it derives from the Package class that provides the implementation of the
  ///     IVsPackage interface and uses the registration attributes defined in the framework to
  ///     register itself and its components with the shell. These attributes tell the pkgdef creation
  ///     utility what data to put into .pkgdef file.
  ///   </para>
  ///   <para>
  ///     To get loaded into VS, the package must be referred by &lt;Asset Type="Microsoft.VisualStudio.VsPackage" ...&gt; in
  ///     .vsixmanifest file.
  ///   </para>
  /// </remarks>
  [PackageRegistration(UseManagedResourcesOnly = true, AllowsBackgroundLoading = true)]
  [ProvideAutoLoad(UIContextGuids.EmptySolution, PackageAutoLoadFlags.BackgroundLoad)]
  [ProvideAutoLoad(UIContextGuids.NoSolution, PackageAutoLoadFlags.BackgroundLoad)]
  [ProvideAutoLoad(UIContextGuids.SolutionExists, PackageAutoLoadFlags.BackgroundLoad)]
  [Guid(PackageGuidString)]
  [ProvideOptionPage(typeof(DokiThemeSettings), "Doki Theme Settings", 
    "General",  1000, 1001, false)]
  [ProvideMenuResource("Menus.ctmenu", 1)]
  public sealed class doki_theme_visualstudioPackage : AsyncPackage {
    /// <summary>
    ///   doki_theme_visualstudioPackage GUID string.
    /// </summary>
    public const string PackageGuidString = "c6fd9aea-0f6b-4f84-be73-de61d8b6c35e";

    #region Package Members

    /// <summary>
    /// Initialization of the package; this method is called right after the package is sited, so this is the place
    /// where you can put all the initialization code that rely on services provided by VisualStudio.
    /// </summary>
    /// <param name="cancellationToken">A cancellation token to monitor for initialization cancellation, which can occur when VS is shutting down.</param>
    /// <param name="progress">A provider for progress updates.</param>
    /// <returns>A task representing the async work of package initialization, or an already completed task if there is none. Do not return null from this method.</returns>
    protected override async Task InitializeAsync(CancellationToken cancellationToken, IProgress<ServiceProgressData> progress)
    {
        await base.InitializeAsync(cancellationToken, progress);
       // in background thread, can do things

       await TheDokiTheme.InitializePluginAsync(this, cancellationToken);

   
        // When initialized asynchronously, the current thread may be a background thread at this point.
        // Do any initialization that requires the UI thread after switching to the UI thread.
        await JoinableTaskFactory.SwitchToMainThreadAsync(cancellationToken);
    }

    #endregion
  }
}
